MP4 was firstly specified as an audio
format with little relation with MPEG-4, and just like the
relationship between MP3 and MPEG-3. But now it tends to be
a video format and equals to MPEG-4 Part 14 with the
extension of *.mp4. It mainly stores digital audio and
ASF is Advanced Streaming Format. It
is an extensible file format developed primarily for storing
synchronized digital video, audio, subtitle streams, or
transmitting data on the internet. ASF is also a multimedia
container of Windows Media Video or Windows Media Audio.
To convert mp4 to asf file, please
install the appropriate mp4 decoder and audio decoder for
the mp4 format such as
FFDSHOW, DivX, XviD etc.
ASF Converter which can
convert mp4 to asf file. Select a mp4 file, Change the
output format to ASF in the Options dialog box, configure some
parameters such as the video encoding bitrate, audio
encoding bitrate, resolution, frame rate etc if necessary.
AVS is a coding method of a new
generation developed by China with the independent
intellectual property rights. Now China is working on the
development of AVS specifications. AVS standards mainly
includes 4 technical standards: system, video, audio and
digital rights management. And AVS video mainly focuses on
video compression applied to high definition television and
high-density optical storage media.
H.264 is a kind of high-performance
video codec technology developed by JVT (Joint Video Team)
formed by both ITU-T and ISO. So itís not only ITU-Tís H.264
but also ISO/IECís MPEG-4 AVC and which nearly becomes Part
10 of the MPEG-4 standard. H.264ís biggest advantage lies in
high compression ratio which will greatly help users save
download time and data traffic charges. H.264 compression
ratio is twice higher than MPEG-2 while 1.5 ~ 2 times than
MPEG-4 under the condition of the same image quality.
Besides, H.264 also provides high-quality smooth image.
AVC is Advanced Video Coding.
To convert AVC to asf or H.264 to asf,